Rather than attempting to squeeze in multiple bedrooms or tons of storage, the Luna Nook keeps things simple with a space-saving design to make its modest footprint feel pleasant to spend time in. The Luna Nook is permanently installed on a picturesque rural spot among trees near the Acadia National Park, in Maine. This is unusual for such a compact model, in that it fits in a freestanding bathtub, alongside a vanity sink and a toilet. The Luna Nook isn't available for purchase, but if you'd like to stay a while, it's up for vacation rental online. Source: Nature Nooks